If it works in Ubuntu 20.04.3 as you say, and only fails in MATE, then we probably shouldn't assign this to the common package where it's working already.
** Changed in: bluez (Ubuntu) Status: New => Invalid ** Summary changed: - Problem with bluetooth keyboard: not usable + Problem with bluetooth keyboard: not usable in MATE -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1943813 Title: Problem with bluetooth keyboard: not usable in MATE Status in Ubuntu MATE: New Status in blueman package in Ubuntu: New Status in bluez package in Ubuntu: Invalid Status in linux package in Ubuntu: Fix Released Bug description: I have a bluetooth keyboard that I use regularly with other devices. The keyboard is Jelly Comb Case with Italian Keyboard for Samsung Galaxy Tab S6 Lite 10.4 ", Removable Backlit Keyboard in 7 Colors, Italian QWERTY for Sam If I try to use it with Ubuntu it only works with the LIVE version. When I install Ubuntu it stops working, after updates. I have tried with various Ubuntu Mate and also the impish version of Ubuntu Mate but, using the same notebook, the computer cannot use it (LIVE yes, installed no). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1943813/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp